by Jon Stern
New Paltz Central School
District
New York
Unit Objectives
Express ratios as fractions in simplest form.
Determine unit ratio.
Determine if a pair of ratios forms a proportion.
Solve problems using proportions.
“C” Level Work (75 points maximum)
(underlined assignments are mandatory)
(*check the rubrics for this activity)
Complete notes for each lesson: *
1_____ Ratio (5 points)
2_____ Unit Rates (5 points)
3_____ Proportion (5 points)
4_____ Flash Cards: (10 points)* create flash
cards using the following words- ratio, rate, unit rate, greatest
common factor, proportion, cross product, numerator, denominator
5_____ Book Work: (10 points)* read Ratios and
Rates on Pp. 338-339 of Glencoe’s Applications and Connections-Course 3
and complete 10 problems on Pp. 340-343 (must include at least 2
Problem Solving and Applications problems).
6_____ Book Work: (10 points)* read Proportions
on Pp. 344-345 of Glencoe’s Applications and Connections-Course 3 and
complete 10 problems on P. 346 (must include at least 2 Problem Solving
and Applications problems).
7_____ Book Work: (10 points)* read Using
Proportions on Pp. 347-348 of Glencoe’s Applications and
Connections-Course 3 and complete 10 problems on Pp. 349-350 (must
include at least 2 Problem Solving and Applications problems).
8_____ Video: The Zany World of Basic Math: Ratios
and Percent (5 points) watch the video and complete the
accompanying worksheet. The video can be accessed online at
www.unitedstreaming.com or by following the link on the course web
site. Type in the username _______________and password
_______________ and search for Ratios and Percent.
9_____ Build a Pyramid: (10 points) Construct a
model of one of the pyramids of Egypt using the scale 1cm = 30m.
Be sure to write down your calculations. Directions for building
the model can be found at http://www.jaconline.com.au/
atlasofdiscovery/downloads/worksheets/ws49-pyramid.pdf.
10_____ Use a pantograph: (5 points) copy
a drawing with a pantograph. Measure the two drawings and
calculate the ratio being used. You can do this online at
www.ies.co.jp/math/java/geo/panta/panta.html. Be sure to print
the drawings.
11_____ Web Activity: (10 points) go to
http://www.aaamath.com/, click on Ratios then click on both Ratios and
Determining Ratios. Complete both activities and print the final
page for both.
12_____ Web Activity: (10 points) go to
http://www.math.com/, click on Everyday Math then click on
Proportions. Complete both the activity and the unit
quiz. Print the final page for both.
13_____ Performance Stations: (10 points each)
go to one of the hands-on stations (described at
http://mathcentral.uregina.ca/rr/ database/rr.09.97/gauthier35.html)
and follow the directions. You may do up to 3 of the stations.
14_____ Baking Proportions: (10 points)
use a home recipe to make cookies for the entire class. Use
proportions to rewrite the recipe for the number of servings you will
need. Be sure to have both the original and new recipes along
with your calculations. Enjoy!
“B” Level Work (15 points maximum)*
15_____ Lab: Airplane Glide Ratio (15 points)
“A” Level Work (10 points maximum)*
16_____ Which form of art requires a greater
understanding of proportions? (10 points)
17_____ Why has the Golden Ratio been so important
throughout human history? (10 points)
18_____ Is the use of ratios, proportions, or percent
more effective when advertising products? (10 points)